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If the earth did not have atmosphere, wo...

If the earth did not have atmosphere, would its average surface temperature be higher or lower than what it is now? Explain

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Due to presence of atmosphere green house effect takes place. Heat radiated by earth is trapped due to hreen house effect. In the absence of atmosphere, temperature of the earth would be lower because the green house effect of the atmosphere would be absent.
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If the earth did not have atmosphere, would its average surface temperautre be higher or lower than what it is now? Explain

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Assertion : If earth did not have atmosphere, its average surface temperature would be lower than what it is now Reason : Green house effect of the atmosphere would be absent, if earth did not have atomosphere.

Assertion:- If earth did not have atomosphere, its average surface temperature would be lower than what it is now. Reason:- Greenhouse effect of the atmosphre would be absent, if earth did not have atmosphere.

The earth's average surface temperature has

A : If the earth did not have an atmosphere, its average surface temperature would have been lower. R : In the absence of atmosphere, the green house effect will be absent.

If the earth did not have an atmosphere, it would become intoleraby cold. Why?